S. L. Bud’ko

Effects of Co substitution on thermodynamic and transport properties and anisotropic H c 2 in Ba ( Fe 1 − x Co x ) 2 As 2 single crystals

Single crystalline samples of

Anisotropic thermodynamic and transport properties of single-crystalline Ba 1 − x K x Fe 2 As 2 ( x = 0 and 0.45)

\text{Ba}{({\text{Fe}}_{1\ensuremath{-}x}{\text{Co}}_{x})}_{2}{\text{As}}_{2}

Crystal chemistry of carbon-substituted MgB2

with

Carbon doping of superconducting magnesium diboride

xl0.12

Lattice and magnetic instabilities in CaFe 2 As 2 : A single-crystal neutron diffraction study

have been grown and characterized via microscopic, thermodynamic, and transport measurements. With increasing Co substitution, the thermodynamic and transport signatures of the structural (high-temperature tetragonal to low-temperature orthorhombic) and magnetic (high-temperature nonmagnetic to low-temperature antiferromagnetic) transitions are suppressed at a rate of roughly 15 K/% Co. In addition, for

First-order structural phase transition in CaFe 2 As 2

x\ensuremath{\ge}0.038

Complete pressure-dependent phase diagrams for SrFe 2 As 2 and BaFe 2 As 2

superconductivity is stabilized, rising to a maximum

Anisotropy of the iron pnictide superconductor Ba ( Fe 1 − x Co x ) 2 As 2 ( x = 0.074 , T c = 23 K )

{T}_{c}

Determination of superconducting anisotropy from magnetization data on random powders as applied to LuNi 2 B 2 C , YNi 2 B 2 C , and MgB 2

of approximately 23 K for

Dirac node arcs in PtSn4

x\ensuremath{\approx}0.07